Skip to content

Instantly share code, notes, and snippets.

@brienw
brienw / can0_setup.md
Last active Nov 29, 2017
Quick notes on the Nerves setup steps to enable an mcp2515 can controller on an rpi3
View can0_setup.md

can0 setup

(for mcp2515 controller like the PiCAN2)

  1. fork (or clone) nerves_system_rpi3 locally into the parent directory of your project

  2. edit mix.exs and change the nerves_system_rpi3 lines to point to your local one:

     def system("rpi3"), do: [{:nerves_system_rpi3, path: "../nerves_system_rpi3", runtime: false}]
    
  3. mix deps.get

  4. mkdir config/rpi3 to set up a place to store some customized rpi configs

View docker_distillery_wrapper
#!/bin/bash
export MIX_ENV=${MIX_ENV:-prod}
if [ -f /.dockerenv ]; then
# We are inside a docker container, so lets build a release
if [ -n "${APP_NAME:+set}" ]; then
echo ">>> BUILDING $APP_NAME <<<"
mix release --env=$MIX_ENV --name=$APP_NAME
else
View ec2_instance_user_data.sh
#!/bin/bash
echo ECS_CLUSTER=your_ecs_cluser_name > /etc/ecs/ecs.config
INSTANCE=$(curl -s http://169.254.169.254/latest/meta-data/instance-id)
hostname $INSTANCE
sed -i.bak "s/\\(HOSTNAME=\\).*/\\1$INSTANCE/" /etc/sysconfig/network
# https://aws.amazon.com/blogs/compute/using-amazon-efs-to-persist-data-from-amazon-ecs-containers/
yum -y install jq
View Deploying Elixir and Phoenix applications using Docker and Exrm.md

Deploying Elixir and Phoenix applications using Docker and Exrm

Goal

By the end of this quick guide, you will know how to compile a Phoenix app release using Exrm and run it inside a Docker container. I've found only a couple of articles that discuss getting an Elixir app up and running inside a Docker container, and even those only touched on some parts of the process. The idea is that this guide will give you a full end-to-end example of how to get all the pieces and parts working together so that you are able to deploy your Phoenix application inside a Docker container.

Assumptions

  1. You already have a working Elixir environment with the Phoenix Framework installed
  2. You have at least basic working knowledge of Docker, and have installed the Docker tools onto your local environment
View keybase.md

Keybase proof

I hereby claim:

  • I am brienw on github.
  • I am br13n (https://keybase.io/br13n) on keybase.
  • I have a public key whose fingerprint is 8414 1E59 A860 651C B3BA 5615 4EC4 FC71 D048 6528

To claim this, I am signing this object:

@brienw
brienw / rake_autocomplete_for_bash.rb
Created Jun 14, 2011 — forked from petrblaho/rake_autocomplete_for_bash.rb
bash autocomplete for rake with cache
View rake_autocomplete_for_bash.rb
#!/usr/bin/env ruby
# Complete rake tasks script for bash
# Save it somewhere and then add
# complete -C path/to/script -o default rake
# to your ~/.bashrc
# Xavier Shay (http://rhnh.net), combining work from
# Francis Hwang ( http://fhwang.net/ ) - http://fhwang.net/rb/rake-complete.rb
# Nicholas Seckar <nseckar@gmail.com> - http://www.webtypes.com/2006/03/31/rake-completion-script-that-handles-namespaces
# Saimon Moore <saimon@webtypes.com>